Figure 2-7 Network Data Memory - NEC NEAX 2400 IMX Manual

5. Data Memory Configuration
Each node on a Fusion network has the following three kinds of Data Memory:
• Data Memory (DM)
• Local Data Memory (LDM)
• Network Data Memory (NDM) - Programmable only by the NCN.
When the contents of the NDM are changed at NCN, the new data is automatically copied to the NDM of each
node. The NDM of the NCN functions as master memory.
is performed in a Fusion network.
When Telephone Numbers are changed, the change at the NCN will affect all nodes on the network. In this figure, data change at Node
A is automatically transferred to each node.
410001
410000
Centralized
MAT
TCP/IP
Data Change...
Telephone Number Change
410000 410001 (for self-Node)
420000 420001 (for Node B)
430000 430001 (for Node C)
440000 440001 (for Node D)
Note: The data must be manually transferred using the CBCN command when the Fusion system is
configured for the first time or the system is once initialized at the NCN.
Note
NCN
Node A
updating NDM
at each node
NDM (master)

Figure 2-7 Network Data Memory

ND-70185 (E)
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Figure 2-7 shows how a Telephone Number change
420000
Node B
copy
LN
Node C
copy
LN
Node D
copy
LN
GENERAL
Data Memory Configuration
420001
NDM
430000 430001
NDM
440001
440000
NDM
CHAPTER 2
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Revision 3.0